Question

In which plant the fruit is a drupe, the Seed coat is a thin embryo, is inconspicuous and the endosperm is edible?
A. Groundnut
B. Wheat
C. Apple
D. Coconut

Answer 1

Hint: Fruit is formed by the ripened ovary while the seed is formed from a ripened ovule, fruit covered the seeds and protects the seed from environmental stress and helps the seeds in the process of dispersion, when they are eaten by the animals.

Complete answer: True fruit is eucarp in which pericarp formed from the wall of the ovary. A fruit in which other floral parts example thalamus, the base of sepals, petals fuse with pericarp is called false fruit, accessory fruit or pseudocarp, and fruit formed without fertilization is called parthenocarpic fruit.
The fruit is of three types such as simple (formed from flower have single pistil), aggregate ( flower have polycarpellary apocarpous gynoecium), and composite fruit (from the whole inflorescence). Drupe fruits are the simple succulent type of fruit, which is also called stone fruit. In Drupe fruit the wall of fruit or pericarp is differentiated into three layers called epicarp, mesocarp and endocarp, the endocarp is stony, it enclosed one or rarely two seeds. These fruits arise from the superior ovary and the epicarp form the outer skin. Example of coconut. Coconut has membranous epicarp, fibrous mesocarp and stony endocarp at hold three dark eyes spot, the mesocarp yield coir, the endocarp is single-seeded with brown testa, white oily endosperm and small embryo and watery fluid is called milk of coconut
Hence, the correct option is D.

Note: Groundnut and wheat are the seed which is widely grown in the tropic and subtropic region of the world, while Apple is the simple false pome fruit that grows in the colder region because it requires low temperature.